package com.lwt.monstermall.order.web;

import com.lwt.monstermall.common.exception.NoStockException;
import com.lwt.monstermall.order.entity.OrderEntity;
import com.lwt.monstermall.order.service.OrderService;
import com.lwt.monstermall.order.vo.OrderConfirmVo;
import com.lwt.monstermall.order.vo.OrderSubmitVo;
import com.lwt.monstermall.order.vo.SubmitOrderResponseVo;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.UUID;

/**
 * @program: monstermall
 * @author: 大怪
 * @create: 2022-03-01 13:53
 */
@Controller
public class OrderWebController {

    @Autowired
    RabbitTemplate rabbitTemplate;

    @Autowired
    OrderService orderService;

    @GetMapping("/toTrade")
    public String toTrade(Model model){
        OrderConfirmVo vo = orderService.confirmOrder();
        model.addAttribute("orderConfirmData",vo);
        return "confirm";
    }

    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes){
        try {
            SubmitOrderResponseVo responseVo = orderService.submitOrder(vo);
            if (responseVo.getCode() == 0){
                //下单成功，来到支付页
                model.addAttribute("submitOrderResp",responseVo);
                return "pay";
            }else{
                String msg = "下单失败：";
                switch (responseVo.getCode()){
                    case 1: msg+="订单信息过期，请刷新再次提交";break;
                    case 2: msg+="订单商品价格发生变化，请确认后提交";break;
                    case 3: msg+="库存锁定失败，商品库存不足";break;
                }
                redirectAttributes.addFlashAttribute("msg",msg);
                return "redirect:http://order.monstermall.com/toTrade";
            }
        }catch (Exception e){
            if (e instanceof NoStockException){
                String message = ((NoStockException) e).getMessage();
                redirectAttributes.addFlashAttribute("msg",message);
            }

            return "redirect:http://order.monstermall.com/toTrade";
        }
    }

    @ResponseBody
    @GetMapping("/test/createOrder")
    public String createOrderTest(){
        OrderEntity orderEntity = new OrderEntity();
        orderEntity.setOrderSn(UUID.randomUUID().toString());
        rabbitTemplate.convertAndSend("order-event-exchange","order.create.order",orderEntity);
        return "ok";
    }
}
